3761728 has 28 divisors (see below), whose sum is σ = 7612380. Its totient is φ = 1843712.

The previous prime is 3761713. The next prime is 3761729. The reversal of 3761728 is 8271673.

It can be written as a sum of positive squares in 2 ways, for example, as 1098304 + 2663424 = 1048^2 + 1632^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3761693 and 3761702.

It is not an unprimeable number, because it can be changed into a prime (3761729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2838 + ... + 3946.

Almost surely, 2^3761728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3761728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3806190).

3761728 is an abundant number, since it is smaller than the sum of its proper divisors (3850652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3761728 is a wasteful number, since it uses less digits than its factorization.

3761728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174 (or 1164 counting only the distinct ones).

The product of its digits is 14112, while the sum is 34.

The square root of 3761728 is about 1939.5174657631. The cubic root of 3761728 is about 155.5234195142.

It can be divided in two parts, 3761 and 728, that added together give a square (4489 = 67²).

The spelling of 3761728 in words is "three million, seven hundred sixty-one thousand, seven hundred twenty-eight".